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Vancouver, British Columbia -  May 05, 2026 - TheNewswire – Vault Strategic Mining Corp .  (TSXV:KNOX) (OTCID:KNXFF) (FSE:M850) ("VAULT" or the "Company")  is pleased to announce that  the Company has transitioned from the OTC Pink Market to the OTCID™ Market operated by OTC Markets Group Inc.

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Figure 1. Vault is pleased to announce its listing on the OTCID market

The OTCID Market is intended for companies committed to maintaining enhanced disclosure practices, including current financial reporting, management certifications, and verified company profile updates. This elevated level of transparency strengthens investor confidence and broadens access to institutional and retail investors who require strong corporate disclosure standards. Vault believes this transition reinforces its ongoing commitment to transparency and sound corporate governance.

Quinn Field-Dyte, CEO & Director stated: “Listing on the OTCID is a natural step for Vault. It became clear that we needed to broaden how we share our story, particularly as interest grows in our U.S. historical mine portfolio. We see this as a key move to engage a wider investor base and support our growth strategy.”

As previously announced on October 21,  2025 the Company’s shares are eligible for electronic clearing and settlement in the United States through the Depository Trust Company  ("DTC"). DTC eligibility streamlines the electronic trading process for U.S. investors by enabling faster and more efficient clearing and settlement of the Company's common shares within the U.S. financial system.  

About Vault Strategic Mining Corp.

Vault Strategic Mining Corp. is a North American resource company focused on the acquisition and advancement of strategic and critical mineral projects located in top-tier mining jurisdictions. The Company emphasizes historical and underexplored assets with potential for value creation through modern exploration and disciplined development. Investors and Stakeholders are encouraged to follow the company on its Linkedin , X.com and subscribe for updates at https://vaultstrategic.com/ .

Vault Strategic Mining Corp. trades on the TSX Venture Exchange (TSXV: KNOX), OTC Markets (OTCID: KNXFF), and the Frankfurt Stock Exchange (FSE: M850).

On behalf of the Board:

Vault Strategic Mining Corp.

" Quinn Field-Dyte "

Chief Executive Officer & Director

Tel: 604.343.4338 | Email: info@vaultstrategic.com

ANY SECURITIES REFERRED TO HEREIN WILL NOT BE REGISTERED UNDER THE U.S. SECURITIES ACT OF 1933 (THE "1933 ACT") AND MAY NOT BE OFFERED OR SOLD IN THE UNITED STATES OR TO A U.S. PERSON IN THE ABSENCE OF SUCH REGISTRATION OR AN EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE 1933 ACT.

NOT FOR DISTRIBUTION TO U.S. NEWSWIRE SERVICES OR FOR DISSEMINATION IN THE UNITED STATES. ANY FAILURE TO COMPLY WITH THIS RESTRICTION MAY CONSTITUTE A VIOLATION OF U.S. SECURITIES LAW.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

Disclaimer for Forward-Looking Information

This release includes forward-looking statements regarding Vault, and the Letain Project, which may include, but is not limited to, statements with respect to the completion of the acquisition of the Letain Project, and the ability to obtain regulatory approvals, and other factors. Often, but not always, Forward-looking statements can be identified by the use of words such as "plans", "is expected", "expects", "scheduled", "intends", "contemplates", "anticipates", "believes", "proposes", "estimates" or variations of such words and phrases, or state that certain actions, events or results "may", "could", "would", "might" or "will" be taken, occur or be achieved. Such statements are based on the current expectations of the management of each entity. The forward-looking events and circumstances discussed in this release, including completion of the acquisition of the Letain Project, may not occur by certain specified dates or at all and could differ materially as a result of known and unknown risk factors and uncertainties affecting the Company, including the risk that VAULT may not obtain all requisite approvals for the acquisition, including the approval of the TSXV, risks of the resource industry, failure to obtain any other required regulatory approvals, economic factors, any estimated amounts, timing of the acquisition and requited payments, the equity markets generally and risks associated with growth, exploration and development. Although VAULT has attempted to identify important factors that could cause actual actions, events or results to differ materially from those described in forward-looking statements, there may be other factors that cause actions, events or results to differ from those anticipated, estimated or intended. No forward-looking statement can be guaranteed. Except as required by applicable securities laws, forward-looking statements speak only as of the date on which they are made VAULT undertakes no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future events, or otherwise.

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